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| 1 | Versatile Nucleotides Substitution in Plant Using an Improved Prime Editing System显示文摘Dear Editor,Base editors(BEs)based on the CRISPR/Cas9 system,including cytosine base editors and adenine base editors,which can efficiently perform four transition mutations(C·G-to-T·A and A·T-to-G·C),have been well studied and widely used to produce base mutations in a variety of organisms,including in plants such as rice. | Wen Xu Chengwei Zhang Yongxing Yang Si Zhao Guiting Kang Xiaoqing He Jinling Song Jinxiao Yang | 2020 | Molecular Plant2020，13，5： | 20 |
| 2 | Comparative Analysis on Chemical Components and Sensory Quality of Aging Flue-Cured Tobacco from Four Main Tobacco Areas of China显示文摘Complicated changes are happening during the aging process of flue-cured tobacco (FCT) and understanding of the changing components is of great significance in improving the quality,shortening aging time,and enhancing production and economic efficiency in tobacco industry.The aging samples of FCT from four main producing areas of China,i.e.,Yunnan,Sichuan,Hubei,and Dongbei,were used to study the changing rule of the components such as alkali,acid,and carbohydrate as well as the aroma and their relationship with sensory quality;and based on the correlation among the components and the sensory quality index,multivariable models were established to predict the aging quality.The results showed that the sensory quality of FCT increased steadily during the aging time,and at the same time,the acidic components (total organic acids,volatile acids) increased gradually,while the alkaline substances (nicotine,volatile alkali),carbohydrate (total sugars,reducing sugar) and pH values showed a downward trend.Correlation analysis found that the sensory quality and pH values were negatively correlated (P<0.05),while the sensory quality with total organic acids and aroma were positively correlated.The optimal model for predicting the quality of FCT was y=56.75-0.63x12+50.09x2-13.27x22,(y:sensory quality;x1:pH;x2:total organic acids).The average predicating error was 1.04% with maximum predicating error of 2.89% and the accuracy rate of above 97%. | SUN Jing-guo HE Jie-wang WU Feng-guang TU Shu-xing YAN Tie-jun SI Hui XIE Hao | 2011 | Agricultural Sciences in China2011，10，8： | 20 |
| 3 | Safety of different acupuncture manipulations for posterior circulation ischemia with vertigo显示文摘Acupuncture at Fengchi(GB20) in the posterior neck improves vertigo.However,subarachnoid hemorrhage and spinal epidural hematoma have been reported to occur after acupuncture in the posterior neck.Therefore,in the present study,we assessed the safety of acupuncture at Fengchi.Laboratory tests and adverse event reports were used to evaluate the safety of different acupuncture manipulations for the treatment of posterior circulation ischemia with vertigo.A total of 136 patients were randomly assigned to four groups.Verum acupuncture was conducted with different needle insertion directions(contralateral paropia or prominentia laryngea) and different needle twisting frequencies(60 or 120 times/minute) at Fengchi and matching acupoints(for example,Zhongwan [CV12],Qihai [CV6],Zusanli [ST36],and Fenglong [ST40]).The patients received 14 treatments over 3–4 weeks.Routine blood analysis,hepatic and renal function tests,urine and feces tests and electrocardiography were performed before the first treatment session and after the final session.Adverse events were recorded after every session.Of the 136 patients,120 completed the study.There were no significant differences between pretreatment and posttreatment test results in any of the groups.Only five patients suffered from minor adverse events(needling pain,slight hematoma and transient chest tightness).No serious adverse events were found.Our results indicate that a 14-session course of needling at Fengchi is relatively safe for treating posterior circulation ischemia with vertigo. | Yan Wen Chao Zhang Xiao-feng Zhao Shi-zhe Deng Si He Ling-hui Huang Guang Tian Zhi-hong Meng | 2016 | Neural Regeneration Research2016，11，8： | 16 |
| 4 | Optimization of air quantity regulation in mine ventilation networks using the improved differential evolution algorithm and critical path method显示文摘In mine ventilation networks, the reasonable airflow distribution is very important for the production safety and economy. Three basic problems of the natural, full-controlled and semi-controlled splitting were reviewed in the paper. Aiming at the high difficulty semi-controlled splitting problem, the general nonlinear multi-objectives optimization mathematical model with constraints was established based on the theory of mine ventilation networks. A new algorithm, which combined the improved differential evaluation and the critical path method(CPM) based on the multivariable separate solution strategy,was put forward to search for the global optimal solution more efficiently. In each step of evolution,the feasible solutions of air quantity distribution are firstly produced by the improved differential evolution algorithm, and then the optimal solutions of regulator pressure drop are obtained by the CPM.Through finite steps iterations, the optimal solution can be given. In this new algorithm, the population of feasible solutions were sorted and grouped for enhancing the global search ability and the individuals in general group were randomly initialized for keeping diversity. Meanwhile, the individual neighborhood in the fine group which may be closely to the optimal solutions were searched locally and slightly for achieving a balance between global searching and local searching, thus improving the convergence rate. The computer program was developed based on this method. Finally, the two ventilation networks with single-fan and multi-fans were solved. The results show that this algorithm has advantages of high effectiveness, fast convergence, good robustness and flexibility. This computer program could be used to solve large-scale generalized ventilation networks optimization problem in the future. | Chen Kaiyan Si Junhong Zhou Fubao Zhang Renwei Shao He Zhao Hongmei | 2015 | International Journal of Mining Science and Technology2015，25，1： | 15 |
| 5 | Recombinant adenovirus vector Ad-hIL-10 protects grafts from cold ischemia-reperfusion injury following orthotopic liver transplantation in rats显示文摘BACKGROUND:Interleukin 10(IL-10),a Th2 type cytokine,modulates inflammatory responses by inhibiting the production of proinflammatory cytokines.This study was designed to investigate the protective effects of adenovirus- mediated human IL-10(Ad-hIL-10)gene transfer on protecting grafts from cold ischemia-reperfusion injury following orthotopic liver transplantation in rats. METHODS:Adenoviruses encoding hIL-10 orβ-galactosidase (Ad-lacZ)were injected via the superior mesenteric vein into prospective donor animals.The donor liver was harvested 48 hours after transduction,and stored for 12 hours at 4℃ in lactated Ringer's solution prior to transplantation.The rats were divided into saline,Ad-lacZ,and Ad-hIL-10 groups.Liver function test,histopathological examination,reverse transcriptase-polymerase chain reaction(RT-PCR),and Western blotting were performed at 24 hours after transplantation in the three groups. RESULTS:Liver function(ALT and AST)was significantly improved,and the Suzuki score was significantly decreased in the Ad-hIL-10 group.The levels of hepatic TNF-α,MIP-2,ICAM-1 mRNA,and NF-κB protein in the Ad-hIL-10 group were significantly decreased.The expression of hIL-10 mRNA was detected by RT-PCR in Ad-hIL-10-treated grafts but not in controls treated with saline or Ad-lacZ. CONCLUSIONS:Donor pretreatment with Ad-hIL-10 down- regulates the expression of proinflammatory cytokines TNF-α,MIP-2,and ICAM-1 mRNA.hIL-10 protects against hepatic cold ischemia-reperfusion injury,at least in part,by suppressing NF-κB activation and subsequent expression of proinflammatory mediators. | Si, Zhong-Zhou Li, Jie-Qun Qi, Hai-Zhi He, Zhi-Jun Hu, Wei Li, Yi-Ning | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，2： | 11 |
| 6 | Spinal Cord Stimulation Frequency Influences the Hemodynamic Response in Patients with Disorders of Consciousness显示文摘Spinal cord stimulation(SCS) is a promising technique for treating disorders of consciousness(DOCs).However, differences in the spatio-temporal responsiveness of the brain under varied SCS parameters remain unclear. In this pilot study, functional near-infrared spectroscopy was used to measure the hemodynamic responses of 10 DOC patients to different SCS frequencies(5 Hz, 10 Hz, 50 Hz, 70 Hz, and 100 Hz). In the prefrontal cortex, a key area in consciousness circuits, we found significantly increased hemodynamic responses at 70 Hz and 100 Hz, and significantly different hemodynamic responses between 50 Hz and 70 Hz/100 Hz. In addition, the functional connectivity between prefrontal and occipital areas was significantly improved with SCS at 70 Hz. These results demonstrated that SCS modulates the hemodynamic responses and long-range connectivity in a frequency-specific manner(with 70 Hz apparently better), perhaps by improving the cerebral blood volume and information transmission through the reticular formation-thalamus-cortex pathway. | Juanning Si Yuanyuan Dang Yujin Zhang Yaxin Li Wenyue Zhang Yi Yang Yue Cui Xiaoping Lou Jianghong He Tianzi Jiang | 2018 | Neuroscience Bulletin2018，34，4： | 10 |
| 7 | Enhanced Poly(ethylene terephthalate)Hydrolase Activity by Protein Engineering显示文摘Poly(ethylene terephthalate)hydrolase(PETase)from Ideonella sakaiensis exhibits a strong ability to degrade poly(ethylene terephthalate)(PET)at room temperature,and is thus regarded as a potential tool to solve the issue of polyester plastic pollution.Therefore,we explored the interaction between PETase and the substrate(a dimer of the PET monomer ethylene terephthalate,2PET),using a model of PETase and its substrate.In this study,we focused on six key residues around the substrate-binding groove in order to create novel high-efficiency PETase mutants through protein engineering.These PETase mutants were designed and tested.The enzymatic activities of the R61A,L88F,and I179F mutants,which were obtained with a rapid cell-free screening system,exhibited 1.4 fold,2.1 fold,and 2.5 fold increases,respectively,in comparison with wild-type PETase.The I179F mutant showed the highest activity,with the degradation rate of a PET film reaching 22.5 mg perμmol·L^-1 PETase per day.Thus,this study has created enhanced artificial PETase enzymes through the rational protein engineering of key hydrophobic sites,and has further illustrated the potential of biodegradable plastics. | Yuan Ma Mingdong Yao Bingzhi Li Mingzhu Ding Bo He Si Chen Xiao Zhou Yingjin Yuan | 2018 | Engineering2018，4，6： | 10 |
| 8 | A human circulating immune cell landscape in aging and COVID-19显示文摘Age-associated changes in immune cells have been linked to an increased risk for infection.However,a global and detailed characterization of the changes that human circulating immune cells undergo with age is lacking.Here,we combined scRNA-seq,mass cytometry and sCATAC-seq to compare immune cell types in peripheral blood collected from young and old subjects and patients with COVID-19.We found that the immune cell landscape was reprogrammed with age and was characterized by T cell polarization from naive and memory cells to effector,cytotoxic,exhausted and reg-ulatory cells,along with increased late natural killer cells,age-associated B cells,inflammatory monocytes and age-associated dendritic cells.In addition,the expression of genes,which were implicated in coron-avirus susceptibility,was upregulated in a cell subtype-specific manner with age.Notably,COVID-19 promoted age-induced immune cell polarization and gene expression related to inflammation and cellular senes-cence.Therefore,these findings suggest that a dysreg-ulated immune system and increased gene expression associated with SARS-CoV-2 susceptibility may at least partially account for COVID-19 vulnerability in the elderly. | Yingfeng Zheng Xiuxing Liu Wenqing Le Lihui Xie He Li Wen Wen Si Wang Shuai Ma Zhaohao Huang Jinguo Ye Wen Shi Yanxia Ye Zunpeng Liu Moshi Song Weiqi Zhang Jing-Dong J.Han Juan Carlos lzpisua Belmonte Chuanle Xiao Jing Qu Hongyang Wang Guang-Hui Liu Wenru Su | 2020 | Protein & Cell2020，11，10： | 10 |
| 9 | Green light-emitting diodes based on hybrid perovskite films with mixed cesium and methylammonium cations显示文摘我们报导高质量的 C 0.4 麻省 0.6 PbBr 3 有在进 perovskite 晶体的 C + 的介绍之上的将近完整的表面范围和好排放性质的薄电影。C 0.4 麻省 0.6 PbBr 3 薄电影在轻射出的二极管作为放射性的层被使用。~ 的最大的外部量效率 2.0% 为这些绿射出的设备被完成。 | Junjie Si Yang Liu Nana Wang Meng Xu Jing Li Haiping He Jianpu Wang Yizheng Jin | 2017 | Nano Research2017，10，4： | 9 |
| 10 | Design and experimental study of a practical Osculating Inward Cone Waverider Inlet显示文摘A design method based on tip to tail streamline tracing and osculating inward cone methods is discussed for designing the integrated Osculating Inward Cone Waverider Inlet(OICWI). A practical geometrical constrained experimental model of OICWI is designed based on the validated design method. It has a total contraction ratio of 4.61 and inner contraction ratio is 2.0. Wind-tunnel tests have been conducted for the OICWI model at free stream Mach number(Ma_∞) of 4.0, 3.5 and 3.0 respectively. The experimental results show that the OICWI has high flow capture ratio and compression abilities. It can self-start at Ma_∞= 3.5 and 4.0 and its flow capture ratio is 0.73 at Ma_∞= 4.0, and Angle of Attack(AOA) 0°. The research results show that the OICWI has advantages of inward cone waverider and streamline tracing inlet. Present OICWI is a novel approach for waverider inlet integration studies and it will promote the use of waverider inlet integration configuration in the studies of airbreathing hypersonic vehicles. | He Xuzhao Zhou Zheng Qin Si Wei Feng Le Jialing | 2016 | Chinese Journal of Aeronautics2016，29，6： | 8 |
| 11 | Discriminated sgRNAs-Based SurroGate System Greatly Enhances the Screening Efficiency of Plant Base-Edited Cells显示文摘The development of CRISPR/Cas9-mediated base editing has made genomic modification more efficient. However, selection of genetically modified cells from millions of treated cells, especially plant cells, is still challenging. In this study, an efficient surrogate reporter system based on a defective hygromycin resistance gene was established in rice to enrich base-edited cells. After step-by-step optimization, the Discriminated sgRNAs-based SurroGate system (DisSUGs) was established by artificially differentiating the editing abilities of a wild-type single guide RNA (sgRNA) targeting the surrogate reporter gene and an enhanced sgRNA targeting endogenous sites. The DisSUGs enhanced the efficiency of screening base-edited cells by 3- to 5-fold for a PmCDA1-based cytosine-to-tyrosine base editor (PCBE), and 2.5- to 6.5-fold for an adenine base editor (ABE) at endogenous targets. These targets showed editing efficiencies of <25% in the conventional systems. The DisSUGs greatly enhanced the frequency of homozygous substitutions and expanded the activity window slightly for both a PCBE and an ABE. Analyses of the total number of single-nucleotide variants from whole-genome sequencing revealed that, compared with the no-enrichment PCBE strategy, the DisSUGs did not alter the frequency of genome-wide sgRNA-independent off-target mutations, but slightly increased the frequency of target-dependent off-target mutations. Collectively, the DisSUGs developed in this study greatly enhances the efficiency of screening plant base-edited cells and will be a useful system in future applications. | Wen Xu Yongxing Yang Ya Liu Guiting Kang Feipeng Wang Lu Li Xinxin Lv Si Zhao Shuang Yuan Jinling Song Ying Wu Feng Feng Xiaoqing He Chengwei Zhang Wei Song Jiuran Zhao Jinxiao Yang | 2020 | Molecular Plant2020，13，1： | 8 |
| 12 | Recent progress on MOF-derived carbon materials for energy storage显示文摘Metal-organic frameworks(MOFs)are of quite a significance in the field of inorganic-organic hybrid crystals.Especially,MOFs have attracted increasing attention in recent years due to their large specific surface area,desirable electrical conductivity,controllable porosity,tunable geometric structure,and excellent thermal/chemical stability.Some recent studies have shown that carbon materials prepared by MOFs as precursors can retain the privileged structure of MOFs,such as large specific surface area and porous structure and,in contrast,realize in situ doping with heteroatoms(eg,N,S,P,and B).Moreover,by selecting appropriate MOF precursors,the composition and morphology of the carbon products can be easily adjusted.These remarkable structural advantages enable the great potential of MOF-derived carbon as high-performance energy materials,which to date have been applied in the fields of energy storage and conversion systems.In this review,we summarize the latest advances in MOF-derived carbon materials for energy storage applications.We first introduce the compositions,structures,and synthesis methods of MOF-derived carbon materials,and then discuss their applications and potentials in energy storage systems,including rechargeable lithium/sodium-ion batteries,lithium-sulfur batteries,supercapacitors,and so forth,in detail.Finally,we put forward our own perspectives on the future development of MOF-derived carbon materials. | Jincan Ren Yalan Huang He Zhu Binghao Zhang Hekang Zhu Shenghui Shen Guoqiang Tan Feng Wu Hao He Si Lan Xinhui Xia Qi Liu | 2020 | Carbon Energy2020，2，2： | 8 |
| 13 | Cloning and Characterization of a Salt Tolerance-Associated Gene Encoding Trehalose-6-Phosphate Synthase in Sweetpotato显示文摘Trehalose plays an important role in metabolic regulation and abiotic stress tolerance in a variety of organisms. In plants, its biosynthesis is catalyzed by two key enzymes: trehalose-6-phosphate synthase(TPS) and trehalose-6-phosphate phosphatase(TPP). In the present study, a TPS gene, named IbTPS, was first isolated from sweetpotato(Ipomoea batatas(L.) Lam.) cv. Lushu 3 by rapid amplification of cDNA ends(RACE). The open reading frame(ORF) contained 2 580 nucleotides encoding 859 amino acids with a molecular weight of 97.433 kDa and an isoelectric point(pI) of 5.7. The deduced amino acid sequence showed high identities with TPS of other plants. Real-time quantitative PCR analysis revealed that the expression level of IbTPS gene was significantly higher in stems of Lushu 3 than in its leaves and roots. Subcellular localization analysis in onion epidermal cells indicated that IbTPS gene was located in the nucleus. Transgenic tobacco(cv. Wisconsin 38) plants over-expressing IbTPS gene exhibited significantly higher salt tolerance compared with the control plant. Trehalose and proline content was found to be significantly more accumulated in transgenic tobacco plants than in the wild-type and several stress tolerance related genes were up-regulated. These results suggest that IbTPS gene may enhance salt tolerance of plants by increasing the amount of treahalose and proline and regulating the expression of stress tolerance related genes. | JIANG Tao ZHAI Hong WANG Fei-bing ZHOU Hua-nan SI Zeng-zhi HE Shao-zhen LIU Qing-chang | 2014 | Journal of Integrative Agriculture2014，13，8： | 8 |
| 14 | Insight into the possible mechanism of the summer diapause of Delia antiqua (Diptera: Anthomyiidae) through digital gene expression analysis显示文摘洋葱苍蝇,德莉娅 antiqua,是能在夏天和冬季季节进入蛹的 diapause 的一个主要地下的农业害虫。然而,很少由于 genomic 资源的缺乏对它的分子的规定被知道。到进夏天 diapause (SD ) 的可能的机制的获得卓见,高产量的 RNA-Seq 数据从 non-diapause (ND ) 和 SD 被产生(起始,维护和静止阶段) 蛹。三对明智的比较被执行并且识别, 1380, 1471 和 435,并且显著地被调整抄本。进一步的分析表明与少年荷尔蒙规定,房间周期,碳水合物和类脂化合物新陈代谢,天生的免疫者和应力有关的几个功能的学期的丰富回答,各种各样的发信号 transductions ,ubiquitin依赖的 proteosome ,并且变化在表皮并且细胞骨架部件在 ND 和 SD 之间并且在 SD 的不同阶段之间被发现。在 SD 和 ND 之间介绍的 transcriptome 的全球描述贡献 SD 的分子的机制的深入的说明。我们的结果也提供卓见进昆虫 diapause 的进化并且支持把洋葱苍蝇用作一个模型比较夏天和冬季 diapauses 的分子的规定事件的重要性。 | You-Jin Hao Yu-Juan Zhang Feng-Ling Si Dan-Ying Fu Zheng-Bo He Bin Chen | 2016 | Insect Science2016，23，3： | 8 |
| 15 | Telomere-dependent and telomereindependent roles of RAP1 in regulating human stem cell homeostasis显示文摘RAP1 is a well-known telomere-binding protein, but its functions in human stem cells have remained unclea匚 Here we generated RAP1 -deficient human embryonic stem cells (hESCs) by using CRISPR/Cas9 technique and obtained RAP1-deficient human mesenchymal stem cells (hMSCs) and neural stem cells (hNSCs) via directed differentiation. In both hMSCs and hNSCs, RAP1 not only negatively regulated telomere length but also acted as a transcriptional regulator of RELN by tuning the methylation status of its gene promoter. RAP1 deficiency enhanced self-renewal and delayed senescence in hMSCs, but not in hNSCs, suggesting complicated lineage-specific effects of RAP1 in adult stem cells.Altogether, these results demonstrate for the first time that RAP1 plays both telomeric and nontelomeric roles in regulating human stem cell homeostasis. | Xing Zhang Zunpeng Liu Xiaoqian Liu Si Wang Yiyuan Zhang Xiaojuan He Shuhui Sun Shuai Ma Ng Shyh-Chang Feng Liu Qiang Wang Xiaoqun Wang Lin Liu Weiqi Zhang Moshi Song Guang-Hui Liu Jing Qu | 2019 | Protein & Cell2019，10，9： | 7 |
| 16 | Niflumic acid hyperpolarizes smooth muscle cells via calcium-activated potassium channel in spiral modiolar artery of guinea pigs显示文摘 | Li LI Ke-tao MA Lei ZHAO Jun-qiang SI Zhong-shuang ZHANG He ZHU Jing LI | 2008 | Acta Pharmacologica Sinica2008，29，7： | 7 |
| 17 | The RNA-binding protein QKI5 regulates primary miR-124-1 processing via a distal RNA motif during erythropoiesis显示文摘 | Fang Wang Wei Song Hongmei Zhao Yanni Ma Yuxia Li Di Zhai Jingnan Pi Yanmin Si Jiayue Xu Lei Dong Rui Su Mengmeng Zhang Yong Zhu Xiaoxia Ren Fei Miao Wenjie Liu Feng Li Junwu Zhang Aibin He Ge Shan Jingyi Hui Linfang Wang Jia Yu | 2017 | Cell Research2017，27，3： | 7 |
| 18 | Comparative genomic and transcriptomic analyses uncover the molecular basis of high nitrogen-use efficiency in the wheat cultivar Kenong 9204显示文摘Studying the regulatory mechanisms that drive nitrogen-use efficiency(NUE)in crops is important for sustainable agriculture and environmental protection.In this study,we generated a high-quality genome assembly for the high-NUE wheat cultivar Kenong 9204 and systematically analyzed genes related to nitrogen uptake and metabolism.By comparative analyses,we found that the high-affinity nitrate transporter gene family had expanded in Triticeae.Further studies showed that subsequent functional differentiation endowed the expanded family members with saline inducibility,providing a genetic basis for improving the adaptability of wheat to nitrogen deficiency in various habitats.To explore the genetic and molecular mechanisms of high NUE,we compared genomic and transcriptomic data from the high-NUE cultivar Kenong 9204(KN9204)and the low-NUE cultivar Jing 411 and quantified their nitrogen accumulation under high-and low-nitrogen conditions.Compared with Jing 411,KN9204 absorbed significantly more nitrogen at the reproductive stage after shooting and accumulated it in the shoots and seeds.Transcriptome data analysis revealed that nitrogen deficiency clearly suppressed the expression of genes related to cell division in the young spike of Jing 411,whereas this suppression of gene expression was much lower in KN9204.In addition,KN9204 maintained relatively high expression of NPF genes for a longer time than Jing 411 during seed maturity.Physiological and transcriptome data revealed that KN9204 was more tolerant of nitrogen deficiency than Jing 411,especially at the reproductive stage.The high NUE of KN9204 is an integrated effect controlled at different levels.Taken together,our data provide new insights into the molecular mechanisms of NUE and important gene resources for improving wheat cultivars with a higher NUE trait. | Xiaoli Shi Fa Cui Xinyin Han Yilin He Long Zhao Na Zhang Hao Zhang Haidong Zhu Zhexin Liu Bin Ma Shusong Zheng Wei Zhang Jiajia Liu Xiaoli Fan Yaoqi Si Shuiquan Tian Jianqing Niu Huilan Wu Xuemei Liu Zhuo Chen Deyuan Meng Xiaoyan Wang Liqiang Song Lijing Sun Jie Han Hui Zhao Jun Ji Zhiguo Wang Xiaoyu He Ruilin Li Xuebin Chi Chengzhi Liang Beifang Niu Jun Xiao Junming Li Hong-Qing Ling | 2022 | Molecular Plant2022，15，9： | 6 |
| 19 | Near-infrared light-driven Janus capsule motors: Fabrication, propulsion, and simulation显示文摘我们报导一没有燃料,在红外线附近(NIR ) 驾驶 Janus microcapsule 马达。Janus microcapsule 马达被帮助模板的聚合电解质 layer-by-layer 汇编制作,由在一个方面上金层喷洒列在后面。NIR 动力的 Janus 马达以 42 /DLHC 的最大的速度完成了高推进合成交付一个高特定的能力(930 mAed nanoparticles,有 81.8% 的轻发射度和 118.62ichia coli 的一个水接触角度(E。coli ) ,肠球菌(ENT ) 和全部的大肠菌(TC ) 被分析。除了 EC 和没有 3, ,结果揭示了低 concentrati 吗?? | Yingjie Wu Tieyan Si Jingxin Shao Zhiguang Wu Qiang He | 2016 | Nano Research2016，9，12： | 6 |
| 20 | Effect of Laser Power on Microstructure and Wear Resistance of WC_P/Ni Cermet Coating显示文摘Laser cladding nickel-based alloy coating (Ni60) and nickel-based composite coating doped with WC par-ticles by 35 %( WCP/Ni) were produced onthelow-carbon steel substrate by CO2continuous wavelaser with pow-er of 5 kWusing theinjected powder technique . The effect of laser power on microstructure and wear resistance oflaser cladding WCP/Ni cermet coating was investigated . The WC_P/Ni alloy coating with evenly distributed WCce-ramic phases and the better bond with the substrate alloy was obtained at a power of 2·2 kW. Diffusion solutionreaction happened between WC particles and the substrate alloy during laser cladding ,and led to the formation ofblock rich-tungsten carbide on the edges of the WC particles ,especially at higher power . The WC_P/Ni alloy coat-ing consists of the undissolved WC particles ,the block or dendritic rich-tungsten carbide ,the bar-like rich-chromi-umcarbide ,and dendrite solid solution and eutectic structure among the carbides . Microhardness and wear resist-ance of the WC_P/Ni coating at different powers were much higher or better than those of Ni60 alloy coating ,andthe best results were obtained at power of 2·2 kW. | SI Song-hua YUAN Xiao-min LIU Yue-long HE Yi-zhu Keesam Shin | 2006 | Journal of Iron and Steel Research(International)2006，13，3： | 6 |
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